"St." <dot### [at] dotcom> wrote:
> "Johan Feyaerts" <joh### [at] nospamhotmailcom> wrote in message> news:459aa983$1@news.povray.org...> > Hi> >> > Where can I find a good tutorial on HDRI in povray?>> I ripped this link from exactly the same question asked 3 years ago:> http://www.helensimages.com/tgtips.htm>> You don't need Terregen but once you've acquired a few probes, you can> envelope your scene in this sphere:>> sphere {<0, 1, 0> 650> texture{ pigment { image_map { hdr "something_probe.hdr" once> interpolate 2 map_type 1} rotate <0, 0, 0> scale 1 }}}>> ~Steve~
Some additional information:
To control the brightness of the map, just adjust the ambient. One way I
suggest is to use 'f-stops' (if you don't know what f-stops are and mean,
have a search for it on google. Basically it is a n^2 law, i.e., +1 f-stop
doubles the brightness, and -1 f-stop will half the brightness etc.)
Add something like:
#declare FStops=0;
#declare Bright = pow(2,FStops);
then use:
finish{ambient Bright diffuse 0}
Adjust FStops to the brightness you want.
-tgq